Home / 284,321.40-392,386.56-163,501.92

Finding the Fourth Proportional to 284,321.40, 392,386.56 and 163,501.92

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Solution

The fourth proportional to 284,321.40, 392,386.56 and 163,501.92 is: 225,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,321.40 : 392,386.56 = 163,501.92 : x
  2. Step 2: Convert to fraction form
    284,321.40/392,386.56 = 163,501.92/x
  3. Step 3: Cross multiply
    284,321.40x = 392,386.56 × 163,501.92
  4. Step 4: Simplify right side
    284,321.40x = 64,155,955,942.20
  5. Step 5: Solve for x
    x = 64,155,955,942.20/284,321.40
  6. Step 6: Final answer
    x = 225,645.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.